The Sistine Chapel, the official private chapel of the popes within the Apostolic Palace in Vatican City, is the most theologically dense single interior in the history of Western civilization - a building whose dimensions encode a claim about its relationship to the Temple of Solomon, whose walls carry a typological program connecting the Law of Moses to the Sermon on the Mount, and whose ceiling and altar wall bear the most celebrated painted program in human history. No other building concentrates as much of the highest religious art within a single architectural space.
The building was designed by Baccio Pontelli and built between 1473 and 1483 under Pope Sixtus IV, for whom it is named (Sistine derives from Sisto, Italian for Sixtus). Its dimensions are precisely calculated: the interior is approximately 40.93 meters long, 13.41 meters wide, and 20.70 meters high. First Kings 6:2 records that Solomon's Temple was 60 cubits long, 20 cubits wide, and 30 cubits high. Using the standard cubit of approximately 52.5 centimeters, the Temple would have been approximately 31.5 by 10.5 by 15.75 meters - different in absolute scale from the Sistine but identical in proportional ratio (3:1:1.5). The Sistine Chapel's proportions encode an architectural argument that the papal chapel is the New Temple of Solomon, the space where the true heir of the Davidic covenant exercises his priesthood.
Hebrews 9:24 - 'For Christ did not enter a sanctuary made with human hands that was only a copy of the true one; he entered heaven itself, now to appear for us in God's presence' - and Matthew 5:17 - 'I have not come to abolish the Law or the Prophets; I have come not to abolish them but to fulfill them' - provide the theological framework within which the chapel's entire program operates. The Law given at Sinai is fulfilled in the Sermon on the Mount; the Temple of Solomon is superseded by the Church and its papal steward.
The side wall frescoes, painted by Botticelli, Ghirlandaio, Perugino, Cosimo Rosselli, and Luca Signorelli in 1481-1482, are organized in a typological program: on the right wall (as one faces the altar), scenes from the life of Moses; on the left wall, scenes from the life of Christ in parallel positions. Moses receiving the Law at Sinai is opposite Christ's baptism by John; Moses and the Israelites crossing the Red Sea is opposite the calling of the first disciples; Moses's punishment of Korah, Dathan, and Abiram is opposite Perugino's Delivery of the Keys to St. Peter (Matthew 16:19). The program argues visually that Christ is Moses fulfilled: the new lawgiver, the new mediator, the new shepherd of God's people.
Michelangelo's ceiling, commissioned by Pope Julius II and painted between 1508 and 1512, extends the chapel's theological program from the Mosaic era back to creation. The nine central panels depict the Genesis narrative from the Separation of Light and Darkness through the Drunkenness of Noah, with the Creation of Adam at the center. The surrounding figures - the massive ignudi, the Hebrew prophets, and the Gentile sibyls - create a vision of all humanity, Jewish and pagan, oriented toward the same theological drama. Isaiah points toward the Messiah; the Delphic Sibyl prophesied in her own tradition.
Michelangelo's Last Judgment on the altar wall, painted 1534-1541, was commissioned by Pope Clement VII and completed under Paul III. It presents Revelation 20:12 - 'the dead were judged according to what they had done as recorded in the books' - as a vision of cosmic finality in which every soul is drawn either upward by divine mercy or downward by the weight of sin. The self-portrait of Michelangelo, visible in the flayed skin of St. Bartholomew, is the painting's most personal gesture: the artist's face in a state of dissolution, held by the martyr, in the presence of Christ.
The chapel continues to function as the venue for papal elections by the College of Cardinals - the conclave - and for major papal liturgical celebrations. It is simultaneously the most visited site in Vatican City and an active place of Catholic worship.
For further reading: William E. Wallace, Michelangelo: The Artist, the Man, and His Times (2010); Loren Partridge, Michelangelo: The Sistine Chapel Ceiling (1996); Leo Steinberg, 'Who's Who in Michelangelo's Creation of Adam,' Art Bulletin 74 (1992); John O'Malley, ed., The Sistine Chapel: A Glorious Restoration (1994); Richard Cocke, Raphael (1969).